Use our Free Colorado Hold Calculator to instantly measure sportsbook margin (also known as hold percentage or vigorish). By entering the odds from any betting market, this tool reveals how much edge the sportsbook has built into the line. Bettors can use this quick analysis to compare books, identify low-hold markets, and make more informed decisions.
Hold Calculator
Hold Calculator Instructions
- Enter all available odds for a market (e.g., both sides of a moneyline or multiple outcomes for futures/props).
- Choose the odds format you’re using (American, Decimal, or Fractional).
- ClickCalculate to reveal the sportsbook’s hold percentage.
- Review the implied probability sum to see how much margin is built into the line.
Compare holds across Colorado sportsbooks to spot the most efficient markets.
What is a Hold Calculator?
A hold calculator measures the sportsbook’s built-in profit margin on a betting market. When you convert odds to implied probabilities and add them together, effective markets total 100%, while sportsbook markets exceed 100%—that excess is the hold. This tool offers a fast and accurate way for bettors to assess pricing fairness. For deep educational content, visit the main Colorado Betting Hub homepage.
How Does the Hold Calculator Work?
The calculator converts each outcome’s odds into implied probability, then sums those probabilities. Any amount above 100% represents the sportsbook’s expected profit margin.
Example
Hold Calculation Formula:
- Convert odds → implied probability
- Positive odds:P = 100 / (American + 100)
- Negative odds:P = |American| / (|American| + 100)
- Decimal:P = 1 / Decimal
- Fractional:P = Denominator / (Numerator + Denominator)
- Calculate hold
Hold % = (Sum of probabilities − 100%)
Example:
- Market:Team A -110, Team B -110
- Probability A =110 / (110 + 100) = 38%
- Probability B =38%
- Total probability =76%
- Hold =76%
Total Payout
Hold reflects sportsbook margin—it does not change your payout, only market efficiency.
Hold Odds Profit Chart
Below is an example chart showing typical holds across major sports markets, helping users understand what “normal” looks like.
|
Market Type |
Typical Hold Range |
|
NFL Sides |
4–6% |
|
NBA Sides |
4–6% |
|
MLB Moneylines |
3–5% |
|
NHL Puck Lines |
4–6% |
|
Player Props |
10–25% |
|
Futures |
20–40% |
Actual values vary across Colorado sportsbooks.
Hold Value and Strategies
The purpose of this tool is to highlight margins, not to recommend bets. Lower hold often means better pricing, especially when comparing multiple Colorado sportsbooks.
⚡Quick tips
-
Use low-hold markets when possible—your long-term expectation improves.
-
Futures and props often have very high hold—compare several books before betting.
-
Markets with symmetrical odds (e.g., both sides -110) still hide margin.
-
Tracking hold changes can reveal market movement or inefficient pricing.
Responsible Gambling
Understanding sportsbook margin is part of keeping betting healthy. A lower hold doesn’t guarantee profit, but it helps Colorado bettors make more informed decisions. Always bet within your means. If you need help visit our page for responsible gambling.
State Gambling Help:
- Colorado Problem Gambling Coalition – Offers information, education, and referrals to support services for individuals and families affected by gambling.
- 1-800-GAMBLER (Colorado Helpline) – Free, confidential help line available 24/7 for anyone concerned about their gambling or a loved one’s gambling.
- Colorado Division of Gaming – Responsible Gambling Resources – Provides information on self-exclusion programs, setting betting limits, and additional support tools for users.
Frequently Asked Questions
What does the hold calculator measure?
It shows the sportsbook’s built-in margin based on the implied probabilities of each outcome.
Why does the probability exceed 100%?
The amount above 100% represents the sportsbook’s expected profit margin.
Can the hold help me find value?
Yes. Lower-hold markets often offer better pricing and more efficient odds.
Does every Colorado sportsbook have the same hold?
No. Holds vary widely across books and markets.
What types of markets have the highest hold?
Futures and player props typically have the highest built-in margin.
Can this calculator be used for multi-outcome events?
Absolutely—enter odds for each available outcome.
Is low hold always better?
Generally yes, but matchup quality and odds movement also matter.
Does hold affect payouts?
No. Hold affects market efficiency, not the payout structure itself.
Are odds boosts reflected in hold?
Not automatically—hold must be recalculated manually when boosts apply.
Is this tool beginner-friendly?
Yes. It simplifies a complex concept into one quick calculation.